1145913691457 has 2 divisors, whose sum is σ = 1145913691458. Its totient is φ = 1145913691456.

The previous prime is 1145913691387. The next prime is 1145913691469. The reversal of 1145913691457 is 7541963195411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989634998416 + 156278693041 = 994804^2 + 395321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145913691457 - 2¹⁸ = 1145913429313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145913691477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572956845728 + 572956845729.

It is an arithmetic number, because the mean of its divisors is an integer number (572956845729).

Almost surely, 2^{1145913691457} is an apocalyptic number.

It is an amenable number.

1145913691457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145913691457 is an equidigital number, since it uses as much as digits as its factorization.

1145913691457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 56.

The spelling of 1145913691457 in words is "one trillion, one hundred forty-five billion, nine hundred thirteen million, six hundred ninety-one thousand, four hundred fifty-seven".